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European Technical AssessmentETA – 15/0808

0432

ETA-15/0808BBR VT CONA CMO

Bonded Post-tensioning System with 02 to 06 Strands

BBR VT International LtdRingstrasse 2, 8603 Schwerzenbach (Switzerland)

www.bbrnetwork.com

XXXXXXXXXXXXXX15

Responsible BBR PT Specialist Company

The delivery note accompanying components of the BBR VT CONA CMO Post-tensioning System will contain the CE marking.

Assembly and installation of BBR VT CONA CMO tendons must only be carried out by qualified BBR PT Specialist Companies. Find the local BBR PT Specialist Company by visiting the BBR Network website www.bbrnetwork.com.

European Organisation for Technical ApprovalsEuropäische Organisation für Technische ZulassungenOrganisation Européenne pour l’Agrément technique

Guideline for European Technical Approval of Post-tensioning Kits for Prestressing of Structures

Requirements for the installation of post-tensioning kits for prestressing of structures and qualification of the specialist company and its personnel

BBR E-Trace is the trading and quality assurance platform of the BBR Network linking the Holder of Approval, BBR VT International Ltd, BBR PT Specialist Companies and the BBR Manufacturing Plant. Along with the established BBR Factory Production Control, BBR E-Trace provides effective supply chain management including installation, delivery notes and highest quality standards, as well as full traceability of components.

Year

PT Specialist Company

Company

ww

w.bbrnetwork.com

ETAG 013

CWA 14646

S P E C I ME N

Designated according to Article 29 of

Regulation (EU) No 305/2011 www.eota.eu

Member of

Schenkenstrasse 4 1010 Vienna ι Austria

T +43 1 533 65 50 F +43 1 533 64 23

www.oib.or.at ι [email protected]

EuropeanTechnical Assessment

ETA-15/0808of 22.02.2016

General part

Technical Assessment Body issuing theEuropean Technical Assessment

Trade name of the construction product

Product family to which the construction product belongs

Manufacturer

Manufacturing plant

This European Technical Assessment contains

This European Technical Assessmentis issued in accordance with Regulation (EU) No 305/2011, on the basis of

Österreichisches Institut für Bautechnik (OIB)Austrian Institute of Construction Engineering

BBR VT CONA CMO – Bonded Post-tensioning System with 02 to 06 Strands

Post-tensioning kit for prestressing of structures with internal bonded strands

BBR VT International LtdRingstrasse 28603 Schwerzenbach (ZH)Switzerland

BBR VT International LtdRingstrasse 28603 Schwerzenbach (ZH)Switzerland

25 pages including Annexes 1 to 11, which form an integral part of this assessment.

ETAG 013, Post-Tensioning Kits for Prestressing of Structures, Edition June 2002, used according to Article 66 3. of Regulation (EU) № 305/2011 as European Assessment Document.

Page 2 of European Technical Assessment ETA-15/0808 of 22.02.2016

OIB-205-085/15-009

Table of contents

EUROPEAN TECHNICAL ASSESSMENT ETA-15/0808 OF 22.02.2016 .........................................................1

GENERAL PART ......................................................................................................................................... 1 TABLE OF CONTENTS.................................................................................................................................. 2 REMARKS .................................................................................................................................................. 4

SPECIFIC PARTS......................................................................................................................................... 4 1 TECHNICAL DESCRIPTION OF THE PRODUCT ........................................................................................4 1.1 General ...........................................................................................................................................4 PT SYSTEM................................................................................................................................................ 5 1.2 Designation and range of the anchorages .......................................................................................5

1.2.1 Designation ............................................................................................................................5 1.2.2 Anchorage..............................................................................................................................5 1.2.3 Range ....................................................................................................................................5

1.3 Centre spacing and edge distance of anchorages ...........................................................................5 1.4 Concrete strength at time of stressing .............................................................................................6 1.5 Slip at anchorages...........................................................................................................................6 1.6 Designation of tendons....................................................................................................................6 1.7 Ducts...............................................................................................................................................6 1.8 Minimum radii of curvature ..............................................................................................................6 1.9 Friction losses .................................................................................................................................7 1.10 Support of tendons..........................................................................................................................7 COMPONENTS............................................................................................................................................ 7 1.11 Strands............................................................................................................................................7 1.12 Anchorages.....................................................................................................................................7 1.13 Permanent corrosion protection.......................................................................................................7 2 SPECIFICATION OF THE INTENDED USES IN ACCORDANCE WITH THE APPLICABLE EUROPEAN

ASSESSMENT DOCUMENT (HEREINAFTER EAD) ..................................................................................7 2.1 Intended uses..................................................................................................................................7 2.2 Assumptions....................................................................................................................................8

2.2.1 General ..................................................................................................................................8 2.2.2 Design....................................................................................................................................8 2.2.2.1 General ..................................................................................................................................8 2.2.3 Installation..............................................................................................................................8 2.2.3.1 General ..................................................................................................................................8 2.2.3.2 Stressing operation ................................................................................................................8 2.2.3.3 Welding ..................................................................................................................................9

2.3 Assumed working life ......................................................................................................................9 3 PERFORMANCE OF THE PRODUCT AND REFERENCES TO THE METHODS USED FOR ITS ASSESSMENT.......9 3.1 Essential characteristics ..................................................................................................................9


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3.1.1 Mechanical resistance and stability ......................................................................................11 3.1.1.1 Resistance to static load ......................................................................................................11 3.1.1.2 Resistance to fatigue............................................................................................................11 3.1.1.3 Load transfer to the structure ...............................................................................................11 3.1.1.4 Friction coefficient ................................................................................................................11 3.1.1.5 Deviation, defection (limits) ..................................................................................................11 3.1.1.6 Practicability, reliability of installation....................................................................................11 3.1.2 Hygiene, health and the environment ...................................................................................11 3.1.3 Related aspects of serviceability ..........................................................................................11 3.1.4 Mechanical resistance and stability ......................................................................................11 3.1.4.1 Load transfer to the structure ...............................................................................................11

3.2 Assessment methods ....................................................................................................................11 3.3 Identification ..................................................................................................................................12 4 ASSESSMENT AND VERIFICATION OF CONSTANCY OF PERFORMANCE (HEREINAFTER AVCP)

SYSTEM APPLIED, WITH REFERENCE TO ITS LEGAL BASE.....................................................................12 4.1 System of assessment and verification of constancy of performance ............................................12 4.2 AVCP for construction products for which a European Technical Assessment has been

issued............................................................................................................................................12 5 TECHNICAL DETAILS NECESSARY FOR THE IMPLEMENTATION OF THE AVCP SYSTEM, AS PROVIDED

FOR IN THE APPLICABLE EAD...........................................................................................................13 5.1 Tasks for the manufacturer............................................................................................................13

5.1.1 Factory production control ....................................................................................................13 5.1.2 Declaration of performance ..................................................................................................13

5.2 Tasks for the notified product certification body.............................................................................13 5.2.1 Initial inspection of the manufacturing plant and of factory production control.......................13 5.2.2 Continuing surveillance, assessment and evaluation of factory production control ...............13 5.2.3 Audit-testing of samples taken at the manufacturing plant or at the manufacturer’s

storage facilities ...................................................................................................................14

ANNEXES ................................................................................................................................................15 ANNEX 1 BOND ANCHORAGE – OVERVIEW ON ANCHORAGES AND DIMENSIONS.........................................15 ANNEX 2 MINIMUM CONCRETE STRENGTH – HELIX – ADDITIONAL REINFORCEMENT – CENTRE

SPACING AND EDGE DISTANCE ................................................................................................16 ANNEX 3 MINIMUM CONCRETE STRENGTH – HELIX – ADDITIONAL REINFORCEMENT – CENTRE

SPACING AND EDGE DISTANCE ................................................................................................17 ANNEX 4 MODIFICATION OF CENTRE SPACING AND EDGE DISTANCE.........................................................18 ANNEX 5 STRAND SPECIFICATIONS........................................................................................................19 ANNEX 6 TENDON RANGES ...................................................................................................................20 ANNEX 7 MAXIMUM PRESTRESSING AND OVERSTRESSING FORCES .........................................................21 ANNEX 8 DESCRIPTION OF PT SYSTEM INSTALLATION ............................................................................22 ANNEX 9 ESSENTIAL CHARACTERISTICS FOR INTENDED USES .................................................................23 ANNEX 10 CONTENTS OF THE PRESCRIBED TEST PLAN.............................................................................24 ANNEX 11 REFERENCE DOCUMENTS .......................................................................................................25


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Remarks Translations of the European Technical Assessment in other languages shall fully correspond to the original issued document and should be identified as such. Communication of the European Technical Assessment, including transmission by electronic means, shall be in full. However, partial reproduction may be made with the written consent of Österreichisches Institut für Bautechnik. Any partial reproduction has to be identified as such.

Specific parts

1 Technical description of the product

1.1 General The European Technical Assessment – ETA – applies to a kit, the PT system

BBR VT CONA CMO Bonded Post-tensioning System with 02 to 06 Strands,

comprising the following components, see Annex 1. Tensile element

7-wire prestressing steel strand with nominal diameters and maximum characteristic tensile strength as given in Table 1.

Table 1: Tensile elements

DesignationNominal diameter Nominal cross-sectional

areaMaximum characteristic

tensile strength

mm mm2 MPa

05 12.5 93

1 86012.9 100

0615.3 140

15.7 150

NOTE 1 MPa = 1 N/mm2

Fixed (passive) anchorage Inaccessible bond anchorage with bulb-ends (onions) Bulb-strand spacer for 02, 03, 04, 05, and 06 strands

Stressing (active) anchorage Anchorage of strands with ring wedges Stressing anchorage according to ETA-06/0147, ETA-09/0286, ETA-09/0287, or ETA-12/0076

Corrosion protection for tensile elements and anchorages The fixed anchorage of BBR VT CONA CMO is installed together with a PT system according to ETA-06/0147, ETA-09/0286, ETA-09/0287, or ETA-12/0076, all from BBR VT International. In this respect, the PT system according to ETA-06/0147, ETA-09/0286, ETA-09/0287, or ETA-12/0076 isreferred to as the basic PT system.


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PT system 1.2 Designation and range of the anchorages 1.2.1 Designation

End anchorage e.g. F A CONA CMO 0406-150 1860

Fixed (F) Anchorage (A) Designation of the PT system

with information on number, cross-sectional area, and characteristic tensile strength of the strands

1.2.2 Anchorage BBR VT CONA CMO provides only an inaccessible fixed bond anchorage of the tendon. The principal dimensions of the fixed anchorage are given in Annex 1, Annex 2, and Annex 3. For stressing anchorage the anchorage from one of the basic systems with identical number of tensile elements – possibly with incomplete equipped anchor heads – is employed. The available tendon configurations comprised of 02 to 06 strands are listed in Table 2.

Table 2: Tendon configurations

Basic SystemsBBR VT CONA CMI BT/SP BBR VT CONA CMF BTETA-06/0147, ETA-09/0286,

and ETA-09/0287 ETA-12/0076

Number of strands

Seven wire prestressing steel strand

05 06 05 06

BBR VT CONA CMO

02 + + +

03 + + +

04 + + +

05 +

06 +

Key+.......... Available tendon configuration

........ Tendon configuration not available

1.2.3 Range The tendons consist of 02, 03, 04, 05, or 06 strands. Tendon ranges are listed in Annex 6.Prestressing and overstressing forces are given in the corresponding standards and regulations in force at the place of use. The maximum prestressing and overstressing forces according to Eurocode 2 are listed in Annex 7.

1.3 Centre spacing and edge distance of anchorages In general, minimum values for spacing and distance are given in Annex 2, and Annex 3. However, centre spacing of tendon anchorages may be reduced in one direction by up to 15 %, but not


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smaller than the outside diameter of the bulb-ends and placing of bulb-strand spacer is still possible. In this case centre spacing in the perpendicular direction is increased by the same percentage, see also Annex 4.

NOTE Bulb-strand spacers and hence spacing between bulb-ends are maintained unchanged despite modification of centre spacing.

The corresponding edge distances are calculated by

ae = ac

2 – 10 mm + c

be = bc

2 – 10 mm + c

Where ac .........mm ............ Centre spacing bc .........mm ............ Centre spacing in the direction perpendicular to ac ae .........mm ............ Edge distance be .........mm ............ Edge distance in the direction perpendicular to ae c ..........mm ............ Concrete cover

No helix and no additional reinforcement is required for the fixed bond anchorage of the BBR VT CONA CMO PT system.

NOTE Concrete cover refers to reinforcement of the structure, placed in the same cross section. Standards and regulations on concrete cover in force at the place of use are to be observed.

1.4 Concrete strength at time of stressing Concrete in conformity with EN 2061 is used. At the time of stressing the mean concrete compressive strength, fcm, 0, is at least 26 MPa, cube strength on a 150 mm cube, or 21 MPa, cylinder strength on a cylinder, 150 mm diameter. Concrete test specimens for verification of mean concrete compressive strength are subjected to the same curing conditions as the structure. For partial prestressing with 30 % of the full prestressing force, the actual mean value of the concrete compressive strength is at least 0.5 · fcm, 0, cube or 0.5 · fcm, 0, cylinder. Intermediate values may be interpolated linearly according to Eurocode 2.

1.5 Slip at anchorages For calculation the tendon length continues until the bulb-ends of the fixed bond anchorage. Slip of bulb-ends may be assumed as zero.

1.6 Designation of tendons Tendon designation follows the basic system, see ETA-06/0147, ETA-09/0286, ETA-09/0287, or ETA-12/0076.

1.7 Ducts The tendon follows the duct specification of the basic system, see ETA-06/0147, ETA-09/0286, ETA-09/0287, or ETA-12/0076.

1.8 Minimum radii of curvature The minimum radii of curvature of the basic system apply, see ETA-06/0147, ETA-09/0286, ETA-09/0287, or ETA-12/0076.

1 Standards and other documents referred to in the European Technical Assessment are listed in Annex 11.


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1.9 Friction losses Friction losses are considered according to the basic system, see ETA-06/0147, ETA-09/0286, ETA-09/0287, or ETA-12/0076.

1.10 Support of tendons For tendon support the basic system applies, see ETA-06/0147, ETA-09/0286, ETA-09/0287, or ETA-12/0076.

Components 1.11 Strands

Only 7-wire prestressing steel strands with characteristics according to Table 3 are used, see also Annex 5.

Table 3: Prestressing steel strands

Maximum characteristic tensile strength 1) fpk MPa 1 860

Nominal diameter d mm 12.5 12.9 15.3 15.7

Nominal cross-sectional area Ap mm2 93 100 140 150

Mass of prestressing steel M kg/m 0.726 0.781 1.093 1.172

1) Prestressing steel strands with a characteristic tensile strength below 1 860 MPa may also be used.

In the course of preparing the European Technical Assessment no characteristic has beenassessed for prestressing steel strands.

1.12 Anchorages Bulb-ends and bulb-strand spacer conform to the specifications in Annex 1 and the technical file2.Therein dimensions, materials and material identification data with tolerances are given. In order to assure the distance between the bulb-ends, the bulb-strands are placed into bulb-strand spacers. The bulb-strand spacers are made of HDPE and slots with a clip-lock accommodate the bulb-strands.

1.13 Permanent corrosion protection To protect the tendons from corrosion, the ducts are completely filled with grout according to EN 447 or special grout according to ETAG 013 as applicable at the place of use.

2 Specification of the intended uses in accordance with the applicable European Assessment Document (hereinafter EAD)

2.1 Intended uses For the BBR VT CONA CMO PT system the same intended uses as for the bonded tendons of the basic systems apply, see ETA-06/0147, ETA-09/0286, ETA-09/0287, or ETA-12/0076. The specific intended uses according to tendon configuration and material of the structure are listed in Table 4.

2 The technical file of the European Technical Assessment is deposited at Österreichisches Institut für Bautechnik.


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Table 4: Intended uses

Line № Use category

Use categories according to tendon configuration and material of structure

1 Internal bonded tendon for concrete and composite structures

2 For special structures according to Eurocode 2 and Eurocode 4

Optional use category

3 For special structures according to Eurocode 6

2.2 Assumptions 2.2.1 General

Concerning product packaging, transport, storage, maintenance, replacement and repair it is the responsibility of the manufacturer to undertake the appropriate measures and to provide advice on transport, storage, maintenance, replacement and repair of the product as considerednecessary. Further details are according to the basic system, see ETA-06/0147, ETA-09/0286, ETA-09/0287, or ETA-12/0076.

2.2.2 Design 2.2.2.1 General

The ETA holder ensures that all necessary information on design and installation is submitted to those responsible for design and execution of the works, executed with the PT system.Regarding design the following items are essential. Design of the structure permits correct installation and stressing of the tendons. The reinforcement in the anchorage zone permits correct placing and compacting of the

concrete. Maximum prestressing and overstressing forces according to Eurocode 2 are listed in

Annex 7.Regarding design the basic system is considered too, see ETA-06/0147, ETA-09/0286, ETA-09/0287, or ETA-12/0076.

2.2.3 Installation 2.2.3.1 General

Assembly and installation of the PT system is only carried out by qualified PT specialist companies with the required resources and experience in the use of multi-strand bonded post-tensioning systems, see ETAG 013, Annex D.1 and CWA 14646. The company’s PT site manager has a certificate, stating that she or he has been trained by the ETA holder of the PT system and that she or he possesses the necessary qualifications and experience with the “BBR VT CONA CMO – Bonded Post-tensioning System with 02 to 06 Strands”.Installation is carried out according to Annex 8. In general the tendon is installed as given for the basic system, see ETA-06/0147, ETA-09/0286, ETA-09/0287, or ETA-12/0076. Before placing the concrete a final check of the installed bulb-strands with bulb-strand spacers is carried out. The respective standards and regulations in force at the place of use are considered.

2.2.3.2 Stressing operation With a mean concrete compressive strength in the anchorage zone according to the values laid down in Annex 2 and Annex 3 full prestressing may be applied. See Clause 1.4 for partial prestressing.


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In general stressing is performed as given for the basic system, see ETA-06/0147, ETA-09/0286, ETA-09/0287, or ETA-12/0076.

2.2.3.3 Welding Welding is not intended for the BBR VT CONA CMO PT system. However, welding may be performed on components and under conditions of the basic system, see ETA-06/0147, ETA-09/0286, ETA-09/0287, or ETA-12/0076. In case of welding operations near tendons,precautionary measures are required to avoid damage.

2.3 Assumed working life The European Technical Assessment is based on an assumed working life of the PT system of 100 years, provided that the PT system is subject to appropriate installation, use and maintenance, see Clause 2.2. The indications given as to the working life of the PT system cannot be interpreted as a guarantee neither given by the product manufacturer or his representative nor by the Technical Assessment Body, but are regarded only as a means for selecting the appropriate products in relation to the expected economically reasonable working life of the works3.

3 Performance of the product and references to the methods used for its assessment

3.1 Essential characteristics The performances of the PT system for the essential characteristics are given in Table 5 andTable 6. In Annex 9 the combinations of essential characteristics and corresponding intended uses are listed in Table 15.

Table 5: Essential characteristics and performances of the product

№ Essential characteristic Product performance

(1) (2) (3)

ProductBBR VT CONA CMO

Intended useThe PT system is intended to be used for the prestressing of structures, Clause 2.1, Table 4, lines № 1 and 2.

Basic requirement for construction works 1: Mechanical resistance and stability

1 Resistance to static load See Clause 3.1.1.1.

2 Resistance to fatigue See Clause 3.1.1.2.

3 Load transfer to the structure See Clause 3.1.1.3.

4 Friction coefficient See Clause 3.1.1.4.

5 Deviation, deflection (limits) See Clause 3.1.1.5.

6 Practicability, reliability of installation See Clause 3.1.1.6.

3 The real working life of a product incorporated in a specific works depends on the environmental conditions to which that

works are subject, as well as on the particular conditions of design, execution, use and maintenance of that works. Therefore, it cannot be excluded that in certain cases the real working life of the product can also be shorter than the assumed working life.


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№ Essential characteristic Product performance

(1) (2) (3)

Basic requirement for construction works 2: Safety in case of fire

Not relevant. No characteristic assessed.

Basic requirement for construction works 3: Hygiene, health and the environment

7 Content, emission and/or release ofdangerous substances See Clause 3.1.2.

Basic requirement for construction works 4: Safety and accessibility in use


Basic requirement for construction works 5: Protection against noise


Basic requirement for construction works 6: Energy economy and heat retention


Basic requirement for construction works 7: Sustainable use of natural resources

No characteristic assessed.

Related aspects of serviceability

8 Related aspects of serviceability See Clause 3.1.3.

Table 6: Essential characteristics and performances of the product in addition to Table 4 for specific intended uses

№ Additional essential characteristic Product performance

(1) (2) (3)

ProductBBR VT CONA CMO

Specific intended useClause 2.1, Table 4, lines № 3, special structures according to Eurocode 6.

Basic requirement for construction works 1: Mechanical resistance and stability

9 Load transfer to the structure See Clause 3.1.4.1.


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3.1.1 Mechanical resistance and stability 3.1.1.1 Resistance to static load

The PT system as described in the ETA meets the acceptance criteria of ETAG 013, Clause 6.1.1-I. The characteristic values of maximum force, Fpk, of the tendon for prestressing steel strands according to Annex 5 are listed in Annex 6.

3.1.1.2 Resistance to fatigue The PT system as described in the ETA meets the acceptance criteria of ETAG 013, Clause 6.1.2-I. The characteristic values of maximum force, Fpk, of the tendon for prestressing steel strands according to Annex 5 are listed in Annex 6.

3.1.1.3 Load transfer to the structure The PT system as described in the ETA meets the acceptance criteria of ETAG 013, Clause 6.1.3-I. The characteristic values of maximum force, Fpk, of the tendon for prestressing steel strands according to Annex 5 are listed in Annex 6.

3.1.1.4 Friction coefficient The PT system as described in the ETA meets the acceptance criteria of ETAG 013, Clause 6.1.4-I. For friction losses including friction coefficient see Clause 1.9.

3.1.1.5 Deviation, deflection (limits) The PT system as described in the ETA meets the acceptance criteria of ETAG 013,Clause 6.1.5-I. For minimum radii of curvature see Clause 1.8.

3.1.1.6 Practicability, reliability of installation The PT system as described in the ETA meets the acceptance criteria of ETAG 013,Clause 6.1.6-I.

3.1.2 Hygiene, health and the environment Content, emission and/or release of dangerous substances is determined according to ETAG 013, Clause 5.3.1. No dangerous substance is the performance of the PT system in this respect. A manufacturer’s declaration to this effect has been submitted.

NOTE In addition to specific clauses relating to dangerous substances in the European Technical Assessment, there may be other requirements applicable to the product falling within their scope, e.g. transposed European legislation and national laws, regulations and administrative provisions. These requirements also need to be complied with, when and where they apply.

3.1.3 Related aspects of serviceability The PT system as described in the ETA meets the acceptance criteria of ETAG 013, Clause 6.7.

3.1.4 Mechanical resistance and stability 3.1.4.1 Load transfer to the structure

For special structures according to Eurocode 6, masonry structures, the PT system as described in the ETA meets the acceptance criteria of ETAG 013, Clause 6.1.3-II(h). The characteristic values of maximum force, Fpk, of the tendon for prestressing steel strands according to Annex 5 are listed in Annex 6. Load transfer of prestressing force to masonry structures is via concrete members designed according to the European Technical Assessment, especially according to the Clauses 1.3 and1.4. The concrete members have such dimensions as to permit a force of 1.1 · Fpk being transferred into the masonry. The verification is performed according to Eurocode 6 as well as to the respective standards and regulations in force at the place of use.

3.2 Assessment methods The assessment of the essential characteristics in Clause 3.1 of the PT system for the intended uses and in relation to the requirements for mechanical resistance and stability, and for hygiene,


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health and the environment in the sense of the basic requirements for construction works № 1 and 3 of Regulation (EU) № 305/2011 has been made in accordance with the Guideline for European technical approvals of “Post-Tensioning Kits for Prestressing of Structures”, ETAG 013, Edition June 2002, used according to Article 66 3. of Regulation (EU) № 305/2011 as European Assessment Document, based on the assessment for internal bonded systems.

3.3 Identification The European Technical Assessment for the PT system is issued on the basis of agreed data4 that identify the assessed product. Changes to materials, to composition or characteristics of the product, or to the production process could result in these deposited data being incorrect.Österreichisches Institut für Bautechnik should be notified before the changes are introduced, as an amendment of the European Technical Assessment is possibly necessary.

4 Assessment and verification of constancy of performance (hereinafter AVCP) system applied, with reference to its legal base

4.1 System of assessment and verification of constancy of performance According to the Commission Decision 98/456/EC the system of assessment and verification of constancy of performance to be applied to the PT system is System 1+. System 1+ is detailed in Commission Delegated Regulation (EU) № 568/2014 of 18 February 2014, Annex, 1.1., andprovides for the following items. (a) The manufacturer shall carry out

(i) factory production control; (ii) further testing of samples taken at the manufacturing plant by the manufacturer in

accordance with the prescribed test plan5.(b) The notified product certification body shall decide on the issuing, restriction, suspension or

withdrawal of the certificate of constancy of performance of the construction product on the basis of the outcome of the following assessments and verifications carried out by that body (i) an assessment of the performance of the construction product carried out on the basis of

testing (including sampling), calculation, tabulated values or descriptive documentation of the product;

(ii) initial inspection of the manufacturing plant and of factory production control;(iii) continuing surveillance, assessment and evaluation of factory production control; (iv) audit-testing of samples taken by the notified product certification body at the

manufacturing plant or at the manufacturer's storage facilities.

4.2 AVCP for construction products for which a European Technical Assessment has been issued Notified bodies undertaking tasks under System 1+ shall consider the European Technical Assessment issued for the construction product in question as the assessment of the performance of that product. Notified bodies shall therefore not undertake the tasks referred to in Clause 4.1,point (b) (i).

4 The technical file of the European Technical Assessment is deposited at Österreichisches Institut für Bautechnik and, in so far

as is relevant to the tasks of the notified product certification body involved in the assessment and verification of constancy of performance, is handed over to the notified product certification body.

5 The prescribed test plan has been deposited with Österreichisches Institut für Bautechnik and is handed over only to the notified product certification body involved in the procedure for the assessment and verification of constancy of performance. The prescribed test plan is also referred to as control plan.


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5 Technical details necessary for the implementation of the AVCP system, as provided for in the applicable EAD

5.1 Tasks for the manufacturer 5.1.1 Factory production control

In the manufacturing plant the manufacturer shall establish and continuously maintain a factory production control. All procedures and specification adopted by the manufacturer shall be documented in a systematic manner. The factory production control shall ensure the constancy of performances of the PT system with regard to the essential characteristics. The manufacturer shall only use raw materials supplied with the relevant inspection documents as laid down in the control plan. The incoming raw materials shall be subject to controls by the manufacturer before acceptance. Check of incoming materials shall include control of inspection documents presented by the manufacturer of the raw materials. The records shall be kept at least for ten years after the construction product has been placed on the market and shall be presented to the notified product certification body involved in continuous surveillance. On request the records shall be presented to Österreichisches Institut für Bautechnik. If test results are unsatisfactory, the manufacturer shall immediately implement measures to eliminate the defects. Construction products or components that are not in conformity with the requirements shall be removed. After elimination of the defects, the respective test – if verification is required for technical reasons – shall be repeated immediately. The basic elements of the prescribed test plan are given in Annex 10, conform to ETAG 013, Annex E.1 and are specified in the quality management plan of the “BBR VT CONA CMO –Internal Bonded Post-tensioning System with 02 to 06 Strands”.

5.1.2 Declaration of performance The manufacturer is responsible for preparing the declaration of performance. When all the criteria of the assessment and verification of constancy of performance are met, including the certificate of constancy of performance issued by the notified product certification body, the manufacturer shall draw up a declaration of performance. Essential characteristics to be included in the declaration of performance for the corresponding intended use are given in Table 5. In Annex 9 the combinations of essential characteristics and corresponding intended uses are listed in Table 15.

5.2 Tasks for the notified product certification body 5.2.1 Initial inspection of the manufacturing plant and of factory production control

The notified product certification body verifies the ability of the manufacturer for a continuous and orderly manufacturing of the PT system according to the European Technical Assessment. In particular the following items shall be appropriately considered. Personnel and equipment Suitability of the factory production control established by the manufacturer Full implementation of the prescribed test plan

5.2.2 Continuing surveillance, assessment and evaluation of factory production control The notified product certification body visits the factory at least once a year for routine inspection. In particular the following items are appropriately considered. Manufacturing process including personnel and equipment Factory production control Implementation of the prescribed test plan


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The results of continuous surveillance are made available on demand by the notified product certification body to Österreichisches Institut für Bautechnik. When the provisions of the European Technical Assessment and the prescribed test plan are no longer fulfilled, the certificate of constancy of performance is withdrawn by the notified product certification body.

5.2.3 Audit-testing of samples taken at the manufacturing plant or at the manufacturer’s storage facilities The PT system BBR VT CONA CMO – Internal Bonded Post-tensioning System with 02 to 06 Strands does not include any component that should be subjected to audit-testing by the notified product certification body. For audit-testing of the components of the basic system see ETA-06/0147, ETA-09/0286, ETA-09/0287, or ETA-12/0076.

Issued in Vienna on 22 February 2016 by Österreichisches Institut für Bautechnik

The original document is signed by

Rainer Mikulits Managing Director


OIB-205-085/15-009

Centre spacing of bulb-ends

Lb L0

Φ0

d 0

Bulb-strand spacer

0206, 0205

Ls

d0

Hs

0306, 0305

0406, 0405

0506, 0505

0606, 0605

Table 7: Bond anchorage – Dimensions

BBR VT CONA CMO 005 06

Bond anchorage 00205 00305 00405 00505 00605 0206 0306 0406 0506 0606

Bond length Lb mm 1 150 1 150 1 150 1 150 1 200 1 400 1 400 1 400 1 400 1 600

Centre spacing d0 mm 75 90

Bulb-end length L0 mm ~ 130–150 ~ 130–150

Bulb-end diameter Φ0 mm ~ 75 10 ~ 90 10

Bulb-strand spacer

Length Ls mm 150 225 300 375 450 180 270 360 450 540

Height Hs mm 38 38

CONA CMO

Internal bonded Post-tensioning SystemBond anchorage

Overview on anchorages and dimensions

Annex 1of European Technical AssessmentETA-15/0808 of 22.02.2016


OIB-205-085/15-009

Centre spacing and edge distance

ae

caeae

ae' ae' ae'

b e' b e'b c

b eac

cb e

b c

ccae

caeae

ae'ae' ae'ae' ae'ae'

b e'b e' b e'b e'b c

b eac

cb e

b c

cc

ae = ae' + cbe = be' + c

c … Concrete cover

Table 8: Bond anchorage – Tendon with 005 strandsBBR VT CONA CMO 05 0205 0305 0405 0505 0605 Strand arrangement

7-wire prestressing steel strandNominal diameter 12.9 mm – Nominal cross-sectional area 100 mm2

Maximum characteristic tensile strength 1 860 MPa 1)

Strand mm2 100 100 100 100 100Cross-sectional area Ap mm2 200 300 400 500 600Characteristic value of maximum force Fpk kN 372 558 744 930 1 116Characteristic value of 0.1 % proof force 2) Fp0.1k kN 328 492 656 820 984Maximum prestressing force 2) 0.90 Fp0.1k kN 295 443 590 738 886Maximum overstressing force 2) 0.95 Fp0.1k kN 312 467 623 779 935

Minimum concrete strength – Helix – Additional reinforcement – Centre spacing and edge distanceMinimum concrete strength, cube fcm, 0 MPa 26 26 26 26 26Minimum concrete strength, cylinder fcm, 0 MPa 21 21 21 21 21Helix 3) Ribbed reinforcing steel, Re 500 MPaOuter diameter mmBar diameter mmLength, approximately mmPitch mmNumber of pitchesDistance mmAdditional reinforcement 3) Ribbed reinforcing steel, Re 500 MPaNumber of stirrupsBar diameter mmSpacing mmDistance from anchor plate mmMinimum outer dimensions mmCentre spacing and edge distanceMinimum centre spacing ac / bc mm 180/150 270/150 350/150 440/150 530/150Minimum edge distance ae' / be' mm 90/75 135/75 175/75 220/75 265/751) Prestressing steel strand with nominal diameter of 12.5 mm, cross-sectional area of 93 mm2 or with characteristic

tensile strength below 1 860 MPa may also be used.2) For strands according to prEN 10138-3, 09.2000, the value shall be multiplied by 0.98.3) No helix and no additional reinforcement is required for this anchorage.

CONA CMO

Internal bonded Post-tensioning SystemMinimum concrete strength – Helix – Additional

reinforcement – Centre spacing and edge distance



OIB-205-085/15-009

Centre spacing and edge distance

ae

caeae

ae' ae' ae'

b e' b e'b c

b eac

cb e

b c

ccae

caeae

ae'ae' ae'ae' ae'ae'

b e'b e' b e'b e'b c

b eac

cb e

b c

cc

ae = ae' + cbe = be' + c

c … Concrete cover

Table 9: Bond anchorage – Tendon with 06 strandsBBR VT CONA CMO 06 0206 0306 0406 0506 0606Strand arrangement

7-wire prestressing steel strandNominal diameter 15.7 mm – Nominal cross-sectional area 150 mm2

Maximum characteristic tensile strength 1 860 MPa 1)

Strand mm2 150 150 150 150 150Cross-sectional area Ap mm2 300 450 600 750 900Characteristic value of maximum force Fpk kN 558 837 1 116 1 395 1 674Characteristic value of 0.1 % proof force 2) Fp0.1k kN 492 738 984 1 230 1 476Maximum prestressing force 2) 0.90 Fp0.1k kN 443 664 886 1 107 1 328Maximum overstressing force 2) 0.95 Fp0.1k kN 467 701 935 1 169 1 402

Minimum concrete strength – Helix – Additional reinforcement – Centre spacing and edge distanceMinimum concrete strength, cube fcm, 0 MPa 26 26 26 26 26Minimum concrete strength, cylinder fcm, 0 MPa 21 21 21 21 21Helix 3) Ribbed reinforcing steel, Re 500 MPaOuter diameter mmBar diameter mmLength, approximately mmPitch mmNumber of pitchesDistance mmAdditional reinforcement 3) Ribbed reinforcing steel, Re 500 MPaNumber of stirrupsBar diameter mmSpacing mmDistance from anchor plate mmMinimum outer dimensions mmCentre spacing and edge distanceMinimum centre spacing ac / bc mm 220/180 320/180 420/180 520/180 630/180Minimum edge distance ae' / be' mm 110/90 160/90 210/90 260/90 315/901) Prestressing steel strand with nominal diameter of 15.3 mm, cross-sectional area of 140 mm2 or with characteristic

tensile strength below 1 860 MPa may also be used.2) For strands according to prEN 10138-3, 09.2000, the value shall be multiplied by 0.98.3) No helix and no additional reinforcement is required for this anchorage.

CONA CMO

Internal bonded Post-tensioning SystemMinimum concrete strength – Helix – Additional

reinforcement – Centre spacing and edge distance



OIB-205-085/15-009

Modification of centre spacing and edge distance

ac

cae

ae'

b e'c

b eb c

cc ae'–ae– ac–

b e' –

b e –b c –

ac

cae

ae'ae'

b e' b e'c

b eb c

cc ae'–ae'–ae–ae– ac–ac–

b e' –b e' –

b e –b e –b c –b c –

ac = bc ac > bc

ae = be ae > be

Modification of centre spacing and edge distance shall be in accordance with Clause 1.3.

bc– 0.85 bc

ac–Ac

bc–

Ac = ac · bc ac– · bc–

Corresponding edge distances

ae– =ac–

2 10 mm + c

and

be– =bc–

2 10 mm + c

c ......Concrete cover. Concrete cover to be understood as concrete cover of reinforcement in the same cross section.

CONA CMO

Internal bonded Post-tensioning SystemModification of centre spacing and edge distance



OIB-205-085/15-009

Seven-wire prestressing steel strands according to prEN 10183-3 1)

Table 10: Prestressing steel strand – Y1770S7

Prestressing steel strand Y1770S7

Tensile strength fpk MPa 1 770

Diameter d mm 12.5 12.9 15.3 15.7


Nominal mass per metre M kg/m 0.726 0.781 1.093 1.172

Permitted deviation from nominal mass % 2

Characteristic value of maximum force Fpk kN 165 177 248 266

Maximum value of maximum force Fm, max kN 190 204 285 306

Characteristic value of 0.1 % proof force 2) Fp0.1 kN 145 156 218 234

Minimum elongation at maximum force, L0 ≥ 500 mm Agt % 3.5

Modulus of elasticity Ep MPa 195 000 3)

Table 11: Prestressing steel strand – Y1860S7

Prestressing steel strand Y1860S7

Tensile strength fpk MPa 1 860

Diameter d mm 12.5 12.9 15.3 15.7


Nominal mass per metre M kg/m 0.726 0.781 1.093 1.172

Permitted deviation from nominal mass % 2

Characteristic value of maximum force Fpk kN 173 186 260 279

Maximum value of maximum force Fm, max kN 199 214 299 321

Characteristic value of 0.1 % proof force 2) Fp0.1 kN 152 164 229 246

Minimum elongation at maximum force, L0 ≥ 500 mm Agt % 3.5

Modulus of elasticity Ep MPa 195 000 3)

1) Suitable strands according to standards and regulations in force at the place of use may also be used.2) For strands according to prEN 10138-3, 09.2000, the value shall be multiplied by 0.98.3) Standard value

CONA CMO

Internal bonded Post-tensioning SystemStrand specifications



OIB-205-085/15-009

Table 12: Tendon ranges

Number of strands n 02 03 04 05 06

Strand with nominal diameter of 12.5 mm and nominal cross-sectional area of 93 mm2

Nominal cross-sectional area of prestressing steel Ap mm2 186 279 372 465 558

Nominal mass of prestressing steel M kg/m 1.45 2.18 2.90 3.63 4.36

Characteristic tensile strength fpk = 1 770 MPaCharacteristic value of maximum force of tendon Fpk kN 330 495 660 825 990

Characteristic tensile strength fpk = 1 860 MPaCharacteristic value of maximum force of tendon Fpk kN 346 519 692 865 1 038



Nominal mass of prestressing steel M kg/m 1.56 2.34 3.12 3.91 4.69Characteristic tensile strength fpk = 1 770 MPa

Characteristic value of maximum force of tendon Fpk kN 354 531 708 885 1 062

Characteristic tensile strength fpk = 1 860 MPaCharacteristic value of maximum force of tendon Fpk kN 372 558 744 930 1 116




Characteristic tensile strength fpk = 1 770 MPaCharacteristic value of maximum force of tendon Fpk kN 496 744 992 1 240 1 488

Characteristic tensile strength fpk = 1 860 MPaCharacteristic value of maximum force of tendon Fpk kN 520 780 1040 1 300 1 560




Characteristic tensile strength fpk = 1 770 MPaCharacteristic value of maximum force of tendon Fpk kN 532 798 1 064 1 330 1 596

Characteristic tensile strength fpk = 1 860 MPaCharacteristic value of maximum force of tendon Fpk kN 558 837 1 116 1 395 1 674

CONA CMO

Internal bonded Post-tensioning SystemTendon ranges



OIB-205-085/15-009

Table 13: Maximum prestressing and overstressing forces – Tendon with 005 strands

Maximum forceMaximum prestressing

force 1), 3)Maximum overstressing

force 1), 2), 3)

0.90 ∙ Fp0.1 0.95 ∙ Fp0.1

DesignationCONA CMO 05

n05-93 n05-100 n05-93 n05-100

Characteristic tensile strength MPa 1 770 1 860 1 770 1 860 1 770 1 860 1 770 1 860

― ― kN kN kN kN kN kN kN kN

nNumber of strands

02 261 274 281 295 276 289 296 312

03 392 410 421 443 413 433 445 467

04 522 547 562 590 551 578 593 623

05 653 684 702 738 689 722 741 779

06 783 821 842 886 827 866 889 935

Table 14: Maximum prestressing and overstressing forces – Tendon with 06 strands

Maximum forceMaximum prestressing

force 1), 3)Maximum overstressing

force 1), 2), 3)

0.90 ∙ Fp0.1 0.95 ∙ Fp0.1

DesignationCONA CMO 06

n06-140 n06-150 n06-140 n06-150

Characteristic tensile strength MPa 1 770 1 860 1 770 1 860 1 770 1 860 1 770 1 860

― ― kN kN kN kN kN kN kN kN

nNumber of strands

02 392 412 421 443 414 435 445 467

03 589 618 632 664 621 653 667 701

04 785 824 842 886 828 870 889 935

05 981 1 031 1 053 1 107 1 036 1 088 1 112 1 169

06 1 177 1 237 1 264 1 328 1 243 1 305 1 334 1 402

1) The given values are maximum values according to Eurocode 2. The actual values shall be taken from the standards and regulations in force at the place of use. Conformity with the stabilisation and crack width criteria in the load transfer test has been verified to a load level of 0.80 Fpk.

2) Overstressing is permitted if the force in the prestressing jack can be measured to an accuracy of 5 % of the final value of the prestressing force.

3) For strands according to prEN 10138-3, 09.2000, the value shall be multiplied by 0.98

WhereFpk............Characteristic value of maximum force of tendonFp0.1..........Characteristic value of 0.1 % proof force of the tendon

CONA CMO

Internal bonded Post-tensioning SystemMaximum prestressing and overstressing forces



OIB-205-085/15-009

Installation of the PT system

1 Preparatory workThe components of the PT system shall be stored in such a way as to avoid any damage or corrosion.

2 Placing of sheathsThe sheaths are placed on supports with spacing and minimum radii of curvature according to the basic system. The sheaths are jointed water-proof and supported such that any movement is prevented.The same applies for prefabricated tendons.

3 Installation of tensile elements – prestressing steel strandThe prestressing steel is pushed or pulled into the sheath before concreting the structure.

4 Assembly of inaccessible fixed bond anchorageAfter passing the strands through the duct, the ends of all strands are individually formed into the bulb-strand shape using a bulb-strand jack. Then the bulb-strand are individually clipped into the bulb-strand spacer. Forming of bulb-ends may as well be performed prior of threading the strands. Ventilation is provided at the duct end of each fixed bond anchorage.

5 Fixing the bulb-strand spacerThe bulb-strand spacer is fastened to the already placed reinforcement.

6 Checking the tendons before concretingBefore concreting the structure, position and fastening of the entire tendon have to be checked and corrected if necessary. The sheaths shall be checked for any damage.

7 Stressing operationAt the time of stressing the mean concrete compressive strength shall be at least according to the provisions of Clause 1.4. Stressing and possible wedging at the stressing anchorage of the basic system is carried out with a suitable prestressing jack and in accordance with ETA-06/0147, ETA-09/0286, ETA-09/0287, or ETA-12/0076.Elongations of tendon and applied prestressing forces are systematically checked and recorded during the stressing operation.

CONA CMO

Internal bonded Post-tensioning SystemDescription of PT system installation



OIB-205-085/15-009

Table 15: Essential characteristics for the intended uses of the PT system

№ Essential characteristic ClauseIntended use

Line № according to Clause 2.1, Table 4

1 2 3

1 Resistance to static load 3.1.1.1 + + +2 Resistance to fatigue 3.1.1.2 + + +3 Load transfer to the structure 3.1.1.3 + +4 Friction coefficient 3.1.1.4 + + +5 Deviation, deflection (limits) 3.1.1.5 + + +6 Practicability, reliability of

installation 3.1.1.6 + + +

7Content, emission and/or release of dangerous substances

3.1.2 + + +

8 Related aspects of serviceability 3.1.3 + + +

9 Load transfer to the structure 3.1.4.1 +Key

+.............Essential characteristic relevant for the intended use...........Essential characteristic not relevant for the intended use

For combinations of intended uses the essential characteristics of all intended uses composing the combination are relevant.

CONA CMO

Internal bonded Post-tensioning SystemEssential characteristics for intended uses



OIB-205-085/15-009

Table 16: Contents of the prescribed test plan

Component Item Test / Check Traceability Minimum

frequency Documentation

Strand

Material Check

Full

100 % “CE” 2)

Diameter Test each coil No

Visual inspection 1) Check each coil No

Bulb-strand spacer

Material Check

Full

100 % No

Dimensions Test 0.5 %2 specimens Yes

Visual inspection 1) Check 100 % No1) Visual inspections include e.g.: Main dimensions, gauge testing, correct marking or labelling, appropriate

performance, surface, fins, kinks, smoothness, corrosion, coating etc., as detailed in the prescribed test plan.

2) If the basis for CE marking of prestressing steel is not available, an approval or certificate according to the respective standards and regulations in force at the place of use shall accompany each delivery.

Full ...........Full traceability of each component to its raw materials.

CONA CMO

Internal bonded Post-tensioning SystemContents of the prescribed test plan



OIB-205-085/15-009

Reference documentsGuideline for European Technical Approval

ETAG 013, 06.2002 Guideline for European Technical Approval of Post-Tensioning Kits for Prestressing of Structures

Standards

Eurocode 2 Eurocode 2: Design of concrete structuresEurocode 4 Eurocode 4: Design of composite steel and concrete structuresEurocode 6 Eurocode 6: Design of masonry structuresEN 206, 12.2013 Concrete – Specification, performance, production and conformityEN 447, 10.2007 Grout for prestressing tendons – Basic requirementsprEN 10138-3, 08.2009 Prestressing steels – Part 3: StrandprEN 10138-3, 09.2000 Prestressing steels - Part 3: StrandCWA 14646, 01.2003 Requirements for the installation of post-tensioning kits for prestressing

of structures and qualification of the specialist company and its personnel

ETAs

ETA-12/0076 BBR VT CONA CMF BT – Internal Post-tensioning System with Flat Anchorages and 02, 03, and 04 Strands

ETA-06/0147 BBR VT CONA CMI – Bonded Post-tensioning System with 04 to 31 Strands

ETA-09/0286 BBR VT CONA CMI BT – Internal Post-tensioning System with 02 to 61 Strands

ETA-09/0287 BBR VT CONA CMI SP – Internal Post-tensioning System with 01 to 61 Strands

98/456/EC Commission decision 98/456/EC of 3 July 1998 on the procedure for attesting the conformity of construction products pursuant to Article 20 (2) of Council Directive 89/106/EEC as regards post-tensioning kits for the prestressing of structures, Official Journal of the European Communities L 201 of 17 July 1998, p. 112

305/2011 Regulation (EU) № 305/2011 of the European Parliament and of the Council of 9 March 2011 laying down harmonised conditions for the marketing of construction products and repealing Council Directive 89/106/EEC, OJ L 88 of 4 April 2011, p. 5, amended by Commission Delegated Regulation (EU) № 568/2014 of 18 February 2014, OJ L 157 of 27.05.2014, p. 76 and Commission Delegated Regulation (EU) № 574/2014 of 21 February 2014, OJ L 159 of 28.05.2014, p. 41

568/2014 Commission Delegated Regulation (EU) № 568/2014 of 18 February 2014 amending Annex V to Regulation (EU) № 305/2011 of the European Parliament and of the Council as regards the assessment and verification of constancy of performance of construction products, OJ L 157 of 27.05.2014, p. 76

CONA CMO

Internal bonded Post-tensioning SystemReference documents


BBR VT International LtdTechnical Headquarters and Business Development CentreSwitzerland

Cop

yrig

ht B

BR

VT

Inte

rnat

iona

l 06.

2016

KB Vorspann-Technik GmbH Weitwörth 25 5151 Nussdorf a. H. Austria

Tel +43 6272 40790 Fax +43 6272 40790 11

www.kb-vt.com [email protected]

KB Vorspann-Technik GmbH Bahnhofstrasse 108 82166 Gräfelfing Germany

Tel +49 89 724 49 69 0 Fax +49 89 724 49 69 12

www.kb-vt.com [email protected]

Documents

CMO BBR VT CONA€¦ · BBR VT CONA CMO provides only an inaccessible fixed bond anchorage of the tendon. The principal dimensions of the fixed anchorage are given in Annex 1,Annex